Knowledge Systems Laboratory, Stanford University
6
u
Declaring a subclass relationship
ä
<Class ID = "
Male
">
ä
<subClassOf resource = "#Animal” />
ä
</Class>
Relations on Classes
Joe is a Male.
Is Joe an Animal?
Yes.
Joan is a Female.
Is Joan a Male?
No.
u
Declaring a disjointness relationship
ä
<Class ID = "
Female
">
ä
<subClassOf resource = "#Animal” />
ä
<disjointFrom resource = "#Male” />
ä
</Class>
